A lot of things factor into quilt value. You may want to look for an appraiser near you, because location is a huge factor in price. Another one is pattern, and that one would not bring as much as one with no political connotations.

Age, condition, method of stitching, and an appraiser's eye for color and design can only be judged in person.

I have no idea to its worth but it is a bit of history!
Have you thought about emailing Fons and Porter or the man that has a column in their magazine? He is a quilt collector and historian. Oh! Try that quilt musuem in Nebraska as well.

Befor the 1930s.that pattern was a popular one,even in Native American designs it was found in various items,then the Nazis came to power and it was not used by anyone because of the negative meaning that the symbol represented,so maybe it was made before the 1930s,I would defintiely get it appraised.

I don't know what it would be worth, but an appraiser would be able to do that. There's a HUGE chunk of history you have there.
If I were to put a price on it, I would say priceless only because it's a family heirloom, as mentioned before.

This info
Q. I bought three antique quilts at a local auction. The woman whose family consigned them used to lease farmland to my father back in the 1950s. She was of German background, I'm sure. The problem I'm having is that two of the quilts have patches with printed swastikas, and I'm worried about displaying them at a quilt show. What do you think?
A. Swastikas had a long and proud history before the Nazis grabbed the ancient symbol and made it their own in 1920. Assuming the quilts were made before 1920, the swastikas had no meaning except as symbols of good luck or strength. Quilts with swastika patterns or patches can be seen in many U.S. museums. You should feel comfortable displaying your quilts at a show, but post a note near the quilts explaining the history of the symbol.